- actinoblast
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n. [Gr. aktis, ray; blastos, bud](PORIFERA)The rudimentary cell of a spicule.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.